Natural Polymer Antioxidant
CN → US| HS编码 | 关税税率 | 原产国 | 目的国 | 文档 |
|---|---|---|---|---|
| 3812310000 | 41.5% | CN | US | 官方文档 |
| 3812396000 | 41.5% | CN | US | 官方文档 |
| 2907292500 | 40.5% | CN | US | 官方文档 |
| 2907198000 | 40.5% | CN | US | 官方文档 |
| 3824999397 | 40.0% | CN | US | 官方文档 |
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AI分析
🛡️ Natural Polymer Antioxidants (Natural Polymer Antioxidants)
🌐 HS Code Reference & Customs Clearance Guide | 2026 Latest Tariff Analysis | Professional Strategy for Chemical Imports
📌 I. Product Definition & Classification: What Exactly is a "Natural Polymer Antioxidant"?
In international trade, "Natural Polymer Antioxidants" are specialized chemical additives used primarily in the rubber and plastic industries to prevent oxidative degradation. Unlike synthetic antioxidants, these are derived from natural sources (such as plant extracts, tocopherols, or modified natural phenols). However, customs classification is strictly based on chemical composition and function, not just the "natural" label.
These products are typically classified under two main chapters:
Chapter 29 (Organic Chemicals): For pure phenolic compounds, polyphenols, or mono-phenols that fit specific chemical definitions.
Chapter 38 (Miscellaneous Chemical Products): For mixtures, preparations, or specific antioxidant formulations not individually listed in Chapter 29 (e.g., rubber/plastic specific stabilizers).
⚠️ Key Distinction Point:
- If the product is a pure chemical substance (e.g., a specific phenol derivative) →归入 Chapter 29 (Lower base duty, but same high surcharges).
- If the product is a mixture/preparation or a specific chemical product for rubber/plastic →归入 Chapter 38 (Slightly different base duty, but same high surcharges).
📦 II. HS Code Classification Details (2026 Latest Tariff Authoritative Comparison)
| HS Code | Product Description | Application Scenario | Material Characteristic |
|---|---|---|---|
3812.31.00.00 |
Polymer antioxidants, for rubber or plastic | Anti-oxidant agents specifically matched for rubber or plastic materials | ✅ Rubber/Plastic related additives |
3812.39.60.00 |
Polymer antioxidants, for other uses | Anti-oxidants for plastics or rubber-related chemicals not specifically listed in 31 | ✅ Plastic/Rubber chemical additives |
2907.29.25.00 |
Organic chemicals, polyphenol/alcohol characteristics | Materials fitting the characteristics of polyphenols or polyalcohols | ✅ Organic chemicals (Polyphenols) |
2907.19.80.00 |
Phenol derivatives, mono-phenol characteristics | Materials fitting the characteristics of mono-phenols | ✅ Organic chemicals (Mono-phenols) |
3824.99.93.97 |
Chemical products, other unspecified | Non-specific chemical preparations, not elsewhere specified | ✅ Miscellaneous chemical products |
🔍 Key Reminder:
- "Natural" does not mean "Exempt". Even if the source is natural, if it is a chemical preparation for rubber/plastic, it likely falls under 3812 or 3824. - If the antioxidant is a pure chemical entity (e.g., a specific tocopherol derivative isolated and identified), it may fall under 2907 (Phenols). - Misclassification Risk: Declaring a mixture as a pure chemical (or vice versa) can lead to customs audits and penalties.
💰 III. 2026 Latest Tariff Rate Breakdown (Including Surcharges & Policy Add-ons)
✅ Applicable Country: United States (US)
✅ Origin: China (CN)
✅ Effective Date: From November 10, 2025 (for subsequent imports)
All HS Codes listed below are subject to the same surcharge structure due to the high-tariff nature of chemical additives under Section 301 and IEEPA.
🎯 1. 3812.31.00.00 & 3812.39.60.00 —— Polymer Antioxidants for Rubber/Plastic
| Item | Content |
|---|---|
| Base Tariff | 6.5% (Ad Valorem) |
| Section 301 Surcharge | +25.0% (From USITC Footnote for Section 301) |
| IEEPA Surcharge | +10.0% (Targeting China/HK products, effective Nov 10, 2025) |
| Total Effective Rate | 41.5% |
| Tax Calculation | CIF Value × 41.5% |
| De Minimis Exemption | ❌ Not Eligible (deny_de_minimis) |
| Legal Basis Path | IEEPA:9903.01.25 → IEEPA:9903.01.24 → USITC:3812.31.00.00 / 3812.39.60.00 |
📌 Explanation:
- "Section 301 25%" is the standard punitive tariff on many Chinese chemical goods; - "IEEPA 10%" is the additional tariff under the International Emergency Economic Powers Act; - Total 41.5% is a high tariff, requiring strict cost calculation.
🎯 2. 2907.29.25.00 & 2907.19.80.00 —— Phenolic Chemicals (Polyphenols/Mono-phenols)
| Item | Content |
|---|---|
| Base Tariff | 5.5% (Ad Valorem) |
| Section 301 Surcharge | +25.0% |
| IEEPA Surcharge | +10.0% |
| Total Effective Rate | 40.5% |
| Tax Calculation | CIF Value × 40.5% |
| De Minimis Exemption | ❌ Not Eligible |
| Legal Basis Path | IEEPA:9903.01.25 → IEEPA:9903.01.24 → USITC:2907.29.25.00 / 2907.19.80.00 |
📌 Note:
- Slightly lower total rate (40.5%) compared to Chapter 38 (41.5%) due to a lower base duty (5.5% vs 6.5%); - However, classification must be precise: only pure chemical substances fitting the phenol definition qualify here.
🎯 3. 3824.99.93.97 —— Other Miscellaneous Chemical Products
| Item | Content |
|---|---|
| Base Tariff | 5.0% (Ad Valorem) |
| Section 301 Surcharge | +25.0% |
| IEEPA Surcharge | +10.0% |
| Total Effective Rate | 40.0% |
| Tax Calculation | CIF Value × 40.0% |
| De Minimis Exemption | ❌ Not Eligible |
| Legal Basis Path | IEEPA:9903.01.25 → IEEPA:9903.01.24 → USITC:3824.99.93.97 |
📌 Note:
- Lowest total rate (40.0%) among the options; - Applies to unspecified chemical preparations. Use only if the product does not fit the specific "polymer antioxidant" (3812) or "phenol" (2907) descriptions.
🛠️ IV. Customs Clearance Practical Advice (Real-World Pitfall Guide)
✅ 1. Required Documentation Checklist (None are Optional)
| Document | Mandatory? | Description |
|---|---|---|
| ✅ Product Spec Sheet | ✔️ | Must include CAS number (if applicable), chemical structure, concentration, and intended use (Rubber/Plastic). |
| ✅ Safety Data Sheet (SDS) | ✔️ | Updated GHS-compliant SDS is mandatory for chemical imports. |
| ✅ Certificate of Analysis (COA) | ✔️ | Proves purity and composition, crucial for distinguishing between Chapter 29 and 38. |
| ✅ Commercial Invoice | ✔️ | Must clearly state "Antioxidant for Rubber/Plastic" or "Phenolic Compound". Avoid vague terms like "Chemical Mix". |
| ✅ Bill of Lading (B/L) | ✔️ | Consistent with invoice and packing list. |
| ✅ Packing List | ✔️ | Net/Gross weights, packaging details. |
| ✅ Customs Broker Power of Attorney | ✔️ | Required for entry filing. |
✅ 2. Declaration Tips (Key Mantra)
🔥 "Match CAS to Code, Specify Use, Avoid Vague Labels!"
| Scenario | Correct Declaration | Wrong Practice |
|---|---|---|
| Pure Phenol Derivative | 2907.xxxx.xxxx.xxxx + CAS Number |
Calling it "Antioxidant Mix" → High audit risk |
| Rubber Stabilizer Mixture | 3812.31.00.00 + "For Rubber" |
Calling it "Organic Chemical" → Misclassification |
| Unspecified Chemical Prep | 3824.99.93.97 |
Calling it "Plastic Additive" without proof → Delays |
| "Natural" Labeling | ✅ Mention in description, but NOT in HS Code selection | Claiming "Natural = 0% Duty" → Fraud Alert! |
✅ 3. Special Handling Scenarios
| Scenario | Handling Advice |
|---|---|
| B2C Small Packages | Do not use De Minimis. All 41.5% duties apply. B2C shipment will be seized or returned. |
| Sample Shipments | Still subject to duty. Declare accurately as "Sample for Testing". No exemption for chemical surcharges. |
| Mixed Containers | If other goods are in the same container, ensure separate invoices and accurate HS codes per item to avoid cross-contamination of audits. |
| Change in Formulation | If the antioxidant is blended with a solvent, it may shift from 2907 (Pure) to 3824 (Preparation). Recalculate duties accordingly. |
🌍 V. Global Market Comparison (2026 Latest)
| Country/Region | Recommended HS Code | Tariff Rate (China Origin) | Certification Requirements | Notes |
|---|---|---|---|---|
| 🇺🇸 United States | 3812.31.00.00 / 2907.xxxx |
40.0% - 41.5% | SDS, COA, FDA (if food-contact) | Highest Tariffs. IEEPA + Section 301 apply. |
| 🇨🇳 China | Same HS Codes | 5% - 6.5% | GB Standards | No surcharges. Low import duty if exporting back. |
| 🇪🇺 EU | 3812 / 2907 |
6.5% - 7% | REACH Registration | No Section 301 or IEEPA. Lower duty, but REACH compliance is critical. |
| 🇦🇺 Australia | 3812 / 2907 |
5% | AICIS | No surcharges. |
| 🇯🇵 Japan | 3812 / 2907 |
3% - 5% | FSCS | No surcharges. |
📌 Conclusion:
- The US is the most expensive market for these chemical antioxidants due to additive tariffs totaling 35% (25% + 10%). - EU/Japan/Australia are more cost-effective for duty purposes, but require stricter chemical safety registrations (REACH in EU). - "Natural" origin does not bypass US surcharges.
📌 VI. Common Mistakes & Pitfall Guide (Lessons from the Trenches)
❌ Mistake 1: Declaring "Antioxidant" without specifying CAS Number or Chemical Structure
👉 Consequence: Customs cannot determine if it’s Chapter 29 or 38 → Hold for Inspection + Possible Rejection.
❌ Mistake 2: Assuming "Natural" means HTSUS Exemption
👉 Consequence: Back taxes + Penalties. The surcharges apply to all goods from China, regardless of natural/synthetic origin.
❌ Mistake 3: Using "Plastic Additive" as the Only Description
👉 Consequence: Too vague. Must specify "Polymer Antioxidant" and Intended Use (Rubber/Plastic).
❌ Mistake 4: Ignoring the 122 Provision Tariff (10%)
👉 Consequence: Underpayment. The 10% IEEPA tariff is mandatory for goods from China effective Nov 10, 2025.
✅ Correct Practice:
"Polymer Antioxidant, Phenolic Derivative, CAS 123-45-67, Used in Rubber Processing, HS Code 3812.31.00.00, SDS Attached"
🎯 VII. Conclusion: Precise Classification, Cost Control, Risk Mitigation
🎯 Remember the Mantra:
🔹 "Chemical Code Determines Duty, Natural Source Doesn't Save You from Surcharges!"
🔹 "41.5% is the Floor, Not the Ceiling! Prepare for 35% in Surcharges."
🔹 "Accurate Description Saves Time, Vague Description Costs Money!"
📌 Pro Tip:
If your Natural Polymer Antioxidant is originating from Vietnam, Mexico, or Malaysia, you may qualify for IEEPA Exemption, reducing the total tariff significantly.
Recommendation: Apply for an Advance Ruling from US Customs (CBP) before shipment to lock in the correct HS Code and duty rate.
📣 Immediate Action:
📞 Contact a Licensed Customs Broker + Provide CAS Number & SDS + Request CBP Advance Ruling
🚀 Let your antioxidants Clear Customs Smoothly, Control Costs, and Maximize Profit!
✨ Professional Clearance Starts with Accurate Classification!
💼 Every Percent of Duty Counts in Chemical Trade!
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关于 HS 编码归类
协调制度（HS）是由世界海关组织（WCO）制定的国际贸易商品分类标准。全球 200 多个国家采用 HS 系统作为海关关税、贸易统计和进出口监管的基础。
每个 HS 编码遵循以下层级结构：
- 章（2 位）——商品大类（例如：第 84 章：机器和机械设备）
- 品目（4 位）——章内的更具体分类
- 子目（6 位）——国际通用细分，所有 WCO 成员国统一使用
- 本国细分（8-10 位）——各国自行扩展的细分编码，如美国 HTSUS 10 位编码
正确的 HS 编码归类对于顺利通关、准确缴纳关税和遵守贸易法规至关重要。错误归类可能导致海关延误、多缴关税或罚款。
从CN进口到US时，适用的关税税率可能包括：
- 最惠国（MFN）税率——适用于 WTO 成员国的标准关税税率
- 普通税率——适用于无贸易协定国家
- 贸易救济关税——附加关税，如 301 条款（反倾销）、232 条款（国家安全）或反补贴税
本页内容仅供参考。如需正式归类，请咨询当地海关或持牌报关代理。